Switch



All@ 22, 1933 l., R. CARLEY Er AL 1,923,613

SWTCH Filed Aug. 2, 1930 MMM.

' 5 matic electric signalling devices. v

An object of the'inventionv is to provide anew Patented Aug. 22, 1.933

. SWITCH Leonard R. Carley, Watertown, and ReideB.

` Scott, Waterbury, Conn., and

New York, N. Y.

Horace lL. Allen,

f original application August 27, isza'serial No. 388,668. Divided and this-application August 2,1930. seriaiNo. 472,690 f Y 2 claims. (o1. 20o-871 Our invention relates to new and useful .improvements in electric switches, and the present application is a division" of one filed by us on Augustf 27,1929, Serial No. 388,668, for Autoand novel switch that is especially adapted to be combined with aform of semi-automatic con-v trol to beused on a motor vehicle in conjunction with certain warning lamps, so that one of two rear lights` (not shown) might be lighted by pressing respectivebuttons.- Thus, a `vehicle to therear may be notiied at a distance before an approach to la turn when the system automatically functions. i l

Still another object of the vide a magnetic switch so that when` the switch is properlywired in an electric warning system, when one circuit is closed,` it will energize one magnet which may light one or two rear lights and wherein when the other circuit is closed, a second magnetwill be energized, these circuits being, in turn, partly controlled by a switch arm on the steering post of the vehicle. Still another Vobject of the invention is to provide. a small electrical switch which may be operated by two control buttons (not shown) and which switch may be readily attached to any form of motor vehicle and then conveniently wired to two 4rear lights and thefsteeringgear,

so that the warning may be flashed to any vehicle in the rear to show the intended course of the driver. L A

Still another object of the invention is tov provide a switch in theV form of a unit that may be cheaply manufactured and easy to assemble and may be quickly/'installed in the system as outlined in the parental applicationl above` menportion of the cover being broken away for the sake of clearness;

Fig. 2 is a side elevation partly in section;

Fig. 3 is a-top plan View;

invention is to pro- .Fig. 4 isy a perspective ofthe upper contact member with its plurality of spring members.

Referring now more particularly to the draw-- lxlliv'l* orrlclet.Av

ing and for the moment to Fig. 1, `,there will be A seena smalldielectric panel :17, on which are mounted two magnetic coils l0 and 11.

VIt will be understood that Vwe have shown these of relatively great length and the respective iron cores 18 and 19 projecting beyond the respective wire'winding. However, much shorter magnetic `coils with their iron cores might be.

equally as well utilized 'to .thus condense the also shown an outer cover plate 19a which covers the magnet coils 10 and 11, which cover may terminate short of the top of the panel 17, so that the upper part of the switch is accessible, al`

though, if desired, the whole switch might be tted within a casing or cover-so as toV be foolproof.

Located ,above the two coils, there is shownA an4 insulated bar of hardrubber or fiber 2.0, which may be of the same material-as the panel and cover, while directly abovethe two ,respective coils, there are drilled in .the bar the openings 21 and 22, so that the respective plungers 23 and 24 may be slidinglyA placed therein.

Looking atV the plunger -.23,forV the moment,

which is identical with the other on,e, there j will be seen a small head or face 25,A which is adapted to be drawntowards the core 18.0f the i coil 10 when the coil is energized. i

The upper end of the plunger 23 is threaded,A

and fitted thereon isa small cross bar 26, whichV is adjusted by the nut 27 andthen held in,its adjusted position by the lock nut 28.

In the same manner, the plunger` 24 has vthe, like cross bar 29, adjustable nut 30 and the lock nut 31. l Located near the top of the panel and above the bar` 20 is the small strip ofV metal 32, as shown in Fig. 5. This strip is provided with the fingers 33 and 33', 34 and 34. These fingers project upwardly at the outer ends, as may be clearly seen, and inasmuch as thestrip and iingers Vare cut from a brass plate, the fingers are .exibla so that'they can be respectively forced downwardly when the plungers are actuated and willV return to ltheir normal position-when the plunger returns. The strip '32 may be riveted or bolted in position through the provision of the small holes 35. l

v'It willbe noticed that the cross bar, 26` extends across the fingers 33 and 33' while the v cross bar 29 extends across the fingers 34 and CTV 34', so that each cross bar actuates two of the iingers. l

Locatedin the bar29 are the-electric contacts 36, A37,'33 and 39, so that when Vthe fingers 33 and 33are depressed by the vmagnetic action of the coillo through the downward movement Yof'tlieplunger and cross bar, these fingers, Ain turn, will contact with the connections 36 and 37,'and likewise when the lingers 34 and 3e are depressed through the action of the coil l1 and its plungenthe fingers 34 'and 3e will be in contact with the latter-mentioned contacts 38 ln Fig. 1, the e electric contacts may be clearly seen, while from each of these contacts will Y extend a lead wire to its cooperating Dart when used in a system as plication. y

To thefstrip 32,.there extends a lead wire 40 and We have shownthis connected'right across shown in the parental apthe top of thestrip, although from an electrical standpoint, lit may simply be connected to the.

metal strip itself. f

VBy' using this flexiblemetal strip 32 and integral flexible lingers, it does away with the nem cessity of having .tension springs about `each .of the plungers, `so that normally there is no contacthetween thecores and the ends of the plungers or the contacting nngers, but 'if desired any suitable form of compressible springs and contacts maybe used. It will be. understood that after either plunger is operated, the respec-Y tive fingers will remain depressed as long as the coils areenergized, but will immediatelyreturn to theiririormal position when the magnetic in fluence has been broken.V i

Asheretofore zmentioned, the way the switch is wired in thecircuit with whichit is to be used is fully shown in the parental application,

but for the sake of clearness, it might be' here mentioned that the four lingers 33, 33'-, 34: and

A34Tl are all connected by the wire IiOandthere is a connection 55 fromv the bottom of the coil up te the 'finger 38 and there may be a small Wire 5`6sfrom which 'may-*extend a wire 56 to a part f of the circuit.v Also, themagnet `l1 is connected to the coil 10 at its bottom and there is a conp necticn from the bottomef the magnet 52 up to fthe connection '37from which may lead'a smallV Y ccf.'

the form of a cover, thel entire unit might be encased in aV different form of covering, so thatl it will be fool-proof and dust-proof.

`From the foregoing, it will be seen that We have produced an electric switch ci simple ccnstruc'tion'havingtwo magnetic Vcoils therein and wherein certain circuits are closed when certain fingers are depressed and wherein certain circuits are closed when other fingers are depressed and wherein both automatic and semi-automatic circuits'may be used., Furthermore, the iingers are all formed from an integral strip and will give long and constant service.v 1

It will he understood that in this case We have not set out the wiring system in which the switch is to be used, as this is .fully disclosed in the parental case but we have, on the other hand, de'- scribed the construction and arrangement or" the parts ofthe switch and have also set out how the switch are wired to form f the several parts of the funit.. Y

Having thus described our invention, ywhatwe claim asnew `and desiretoy secure byLetters Patent isz- 1. A magnetic switch for warning. signals,'in cluding a-l support, means -extendingffromthe support for holding slidable plungers," slid'able plungers in said meansand each plunger adapte' Aed to he actuated by amagnetic coil, electric contacts,A flexible circuitfcarrying ngersf secured to saidsupport and extending "downwardlyandvoutwardly and-'slightly :upwardly at their I outer endsand positioned directly `alcove' said respective electric' contacts, eac'lrofsaid plungers provided with an adjustable crossehead 'resting on the outerupward@extending'fportions of ytwo or" saidfiexible ingers` and forcing theoutward-l ly extendingfportion of "said fingers downwardly against their respective electric contacts-when said plunger is actuated.

2. A magnetic switch for warning signals, including a supporta` shelf extending `from the support, slidabl'e plungers mounted onsaid shelf,`

each plunger adapted to `be actuated by a mag-` netic coil, ra circuit-,carrying platevmounted ,above iis Y said shelf and consisting of a plurality of cir? f cuit-carrying spring fingers, electric contacts mounted on said'shel vdirectly beneathitlie respect'ive circuitecarryingv iingers, each of said plungers `providedgwith an adjustable cross-head andthe said cross-head resting'on-two. of the respective lingers and normally holding the cross-head and plunger in anupwardposition` and the cross-headforcingthe'ngers in contact with the electrical contacts when the crossitsplunger. ',LEQNARD R. C ARLEY. .REID Bjsco'r'r.

HORACE L. ALLEN..v

head is moved by 

